VDB-91909 · CVE-2016-6307 · BID 93152

OpenSSL 1.1.0 tls_get_message_header memory allocation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability classified as problematic was found in OpenSSL 1.1.0 (Network Encryption Software). Affected by this vulnerability is the function tls_get_message_header. The manipulation with an unknown input leads to a memory allocation vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect availability.

The weakness was shared 09/22/2016 by Shi Lei with Qihoo 360 as 20160922.txt as confirmed advisory (Website). The advisory is shared at openssl.org. This vulnerability is known as CVE-2016-6307 since 07/26/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

Upgrading to version 1.1.0a eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 87879, 88080, 90937 and 90940 are related to this item.

Productinfo

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Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: OpenSSL 1.1.0a
Patch: 4b390b6c3f8df925dc92a3dd6b022baa9a2f4650

Timelineinfo

07/26/2016 🔍
09/21/2016 +57 days 🔍
09/22/2016 +1 days 🔍
09/22/2016 +0 days 🔍
09/23/2016 +1 days 🔍
09/20/2022 +2188 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: 20160922.txt
Researcher: Shi Lei
Organization: Qihoo 360
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6307 (🔍)
SecurityTracker: 1036885
SecurityFocus: 93152 - OpenSSL CVE-2016-6307 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/23/2016 18:11
Updated: 09/20/2022 10:54
Changes: 09/23/2016 18:11 (48), 07/07/2019 16:54 (7), 09/20/2022 10:54 (4)
Complete: 🔍

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